en_tn/jdg/05/25.md

brought him butter

Here "butter" refers to curdled milk. This was the best milk and a favorite drink among Jael's people. AT: "brought him yogurt" or "brought him curds"

a dish fit for princes

This phrase means the dish was of the best quality because princes were given the best things. (See: rc://en/ta/man/translate/figs-explicit)